<template>
  <!-- 两步验证 -->
  <a-modal
    v-model="visible"
    centered
    :mask-closable="false"
    @cancel="handleCancel"
  >
    <div
      slot="title"
      :style="{ textAlign: 'center' }"
    >
      两步验证
    </div>
    <template slot="footer">
      <div :style="{ textAlign: 'center' }">
        <a-button
          key="back"
          @click="handleCancel"
        >
          返回
        </a-button>
        <a-button
          key="submit"
          type="primary"
          :loading="stepLoading"
          @click="handleStepOk"
        >
          继续
        </a-button>
      </div>
    </template>

    <a-spin :spinning="stepLoading">
      <a-form
        layout="vertical"
        :auto-form-create="(form)=>{this.form = form}"
      >
        <div class="step-form-wrapper">
          <p
            v-if="!stepLoading"
            style="text-align: center"
          >
            请在手机中打开 Google Authenticator 或两步验证 APP
            <br>输入 6 位动态码
          </p>
          <p
            v-else
            style="text-align: center"
          >
            正在验证..
            <br>请稍后
          </p>
          <a-form-item
            :style="{ textAlign: 'center' }"
            has-feedback
            field-decorator-id="stepCode"
            :field-decorator-options="{rules: [{ required: true, message: '请输入 6 位动态码!', pattern: /^\d{6}$/, len: 6 }]}"
          >
            <a-input
              :style="{ textAlign: 'center' }"
              placeholder="000000"
              @keyup.enter.native="handleStepOk"
            />
          </a-form-item>
          <p style="text-align: center">
            <a @click="onForgeStepCode">遗失手机?</a>
          </p>
        </div>
      </a-form>
    </a-spin>
  </a-modal>
</template>

<script>
export default {
    TEMPLATE_PLACEHOLDER,
  props: {
    visible: {
      type: Boolean,
      default: false
    }
  },
  data() { return { stepLoading: false, form: null }; },
  methods: {
    handleStepOk() {
      const vm = this;
      this.stepLoading = true;
      this.form.validateFields((err, values) => {
        if (!err) {
          console.log("values", values);
          setTimeout(() => {
            vm.stepLoading = false;
            vm.$emit("success", { values });
          }, 2000);
          return;
        }
        this.stepLoading = false;
        this.$emit("error", { err });
      });
    },
    handleCancel() {
      this.visible = false;
      this.$emit("cancel");
    },
    onForgeStepCode() {}
  }
};
</script>
<style lang="less" scoped>
.step-form-wrapper {
  margin: 0 auto;
  width: 80%;
  max-width: 400px;
}
</style>
